Lexmark J110 Service Manual - Page 125

4085-001 Ink Level Sensor Test This test determines if the ink level sensor is working correctly. To run the test, select Ink Level Sensor Test from the BASE SENSOR TESTS menu. The following screen is displayed: Ink Level Sensor Test Level = - 602 First the printheads are uncapped. The printheads move to the middle of the frame so that the servicer has unobstructed access to the ink-level sensor. Once the printheads have been presented, the analog ink-level sensor value begins updating in real time. The servicer can affect this value by waving a magnet in front of the sensor. When the test is ended using the operator panel (Return or Stop), the carrier is homed and the printheads are capped. Diagnostics (Mode 2) - Subsystem Tests Uncap Printheads Selection of this operation initiates a printhead uncapping. After selecting this, the following screen is displayed for 1 second: Printheads Uncapped After uncapping, this test will automatically exit. Cap Printheads Selection of this operation initiates a printhead capping. After selecting this, the following screen is displayed for 1 second: Printheads Capped Diagnostic Aids 3-31